Paper milk bottle



c. H.'BERRY PAPER MILK BOTTL'E Oct. 11, 1938.

Filed July 28, 1957 Patented Oct. 11, 1938 UNITED STATES PATENT oFncChristopher Hamilton Berry, Toronto, Ontario, Canada Application July28,

1 Claim.

This invention relates to a milk bottle or container, formed of fibrousmaterial, such as paper substantially corresponding in shape and size,with the standard milk bottle.

An object of the invention is to produce 'a bottle light in weight,durable and rigid, and applicable of being filled and capped by any ofthe standard bottle filling and capping machines.

A further object is to produce a paper bottle that may besemi-transparent and leak proof by being completely coated, eitherbefore or after formation, with a'suitable composition, such as paraffinor the like.

A further andnovel feature is to form from a single sheet of fibrousmaterial, such as paper, a liquid container into the shape and formationof a standard milk bottle, that will resist crushing and damage whenbeing filled orhandied, and will not bulge or lose its regular shapeafter standing for lengthy periods with liquid contents.

In the hereunto annexed drawing- Figure 1 is an elevational view of thebottle.

Figure 2 is an elevational view of the bottle before the neck and headis formed,

Figure 3 is a transverse sectional view on lines X- -X, Figure 1, I I

Figure 4 is a detail sectional view through the head, and

Figure 5 is a fragmental topplan view of the 1 head.

The bottle is formed from a single sheet of fibrous material, such aspaper of a suitable weight, and thickness, notched along one edge;

to form a series of ears adapted to ,be folded 1937, Serial No. 156,191

prevent being mis-shaped when being handled and filled.

To form the mouth of the bottle the ears D, are folded outwardlyinradial relation at right angles on the lines (1, to form a shoulder E.The outer portion of the ears are then bent upwardly from the lines o toform a radial flange F or the mouthof the bottle.

Fitted and cemented over the flange F is a binding ring G, formed inU-shape, and preferably formed from paper.

To further bindthe ring, G over the upwardly bent portions of the earsinto circular formation, the inner periphery of the binding ring isembossed by any suitable method when the bottle is being formed.

The shoulder E, and flange F form the mouth of the bottle proper, andalso provide a seat for the cap applied by the bottle filling apparatusfor sealing the contents.

H, designates the bottom of the bottle, consisting of a paper disc,formed with a radial flange h adapted to be cemented to the interiorwalls of the bottom portion of the bottle.

To further bind and seal the bottom in place 1 and to make leak proofthe flange is embossed in circular relation, which also reinforces andstrengthens the attachment.

What I claim as new and desire to secure by Letters Patent is- A bottleof the character described, a sheet of fibrous material having one ofits edges notched to form a series of folding ears, the said sheet beingformed and cemented into tubular formation, the upper portion of saidtubular member being converged by a series of graduated radial crimps toform a neck and mouth therewith, the sald ears being folded over atright angles into radial relation to form a shoulder and the said'earsbeing further'folded over at right angles to the said shoulder to form aradial flange and mouth with said neck, and a U- shaped binding ringengaging over the said radial flange, a closure fitted in'the oppositeend of said tubular member forming a bottom therewith.

C. H. BERRY.

